The wind turbine control unit (WPCU) is the control core of each wind turbine, which is distributed in the tower and engine room of the wind turbine. Due to the harsh operating environment of wind turbines, the reliability requirements of the control system are very high, and the wind power control system is designed specifically for the operation requirements of large wind farms, which should have high environmental adaptability and electromagnetic interference resistance. The field control stations of wind power control system include: tower main controller cabinet, engine room control station cabinet, pitch change system, converter system, field touch screen station, Ethernet switch, field bus communication network, UPS power supply, emergency shutdown backup system, etc.